{"id":4718,"date":"2023-01-04T17:52:12","date_gmt":"2023-01-04T09:52:12","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4718"},"modified":"2023-01-04T17:52:12","modified_gmt":"2023-01-04T09:52:12","slug":"%e8%a7%a3%e6%b1%bareact-js%e4%b8%ad%e7%9a%84errorreact-createelementtypeshouldnotbenullundefinedbooleanornumber%e9%8c%af%e8%aa%a4","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/react-js\/%e8%a7%a3%e6%b1%bareact-js%e4%b8%ad%e7%9a%84errorreact-createelementtypeshouldnotbenullundefinedbooleanornumber%e9%8c%af%e8%aa%a4\/","title":{"rendered":"\u89e3\u6c7aReact.js\u4e2d\u7684&#8221;Error:React.createElement:typeshouldnotbenull,undefined,boolean,ornumber&#8221;\u932f\u8aa4"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"React.js, Error, React.createElement, DOM elements, ReactClass, composite components\"><\/p>\n<h1>\u89e3\u6c7a React.js &#8220;Error: React.createElement: type should not be null, undefined, boolean, or number. It should be a string (for DOM elements) or a ReactClass (for composite components)&#8221; \u5e38\u898b\u932f\u8aa4<\/h1>\n<p>React.js \u662f\u4e00\u500b\u7528\u65bc\u69cb\u5efa\u7528\u6236\u754c\u9762\u7684 JavaScript \u5eab\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u8f15\u9b06\u5730\u69cb\u5efa\u9ad8\u6027\u80fd\u7684\u7db2\u9801\u61c9\u7528\u7a0b\u5e8f\u3002\u7136\u800c\uff0c\u5728\u4f7f\u7528 React.js \u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u7684\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f &#8220;Error: React.createElement: type should not be null, undefined, boolean, or number. It should be a string (for DOM elements) or a ReactClass (for composite components)&#8221;\u3002<\/p>\n<p>\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u662f\uff0cReact.createElement \u65b9\u6cd5\u63a5\u53d7\u7684\u7b2c\u4e00\u500b\u53c3\u6578\u5fc5\u9808\u662f\u4e00\u500b\u5b57\u7b26\u4e32\uff08\u7528\u65bc\u6307\u5b9a DOM \u5143\u7d20\uff09\u6216 ReactClass\uff08\u7528\u65bc\u6307\u5b9a\u8907\u5408\u7d44\u4ef6\uff09\uff0c\u800c\u4e0d\u80fd\u662f null\u3001undefined\u3001boolean \u6216 number\u3002<\/p>\n<p>\u8981\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u958b\u767c\u8005\u9700\u8981\u6aa2\u67e5\u4ed6\u5011\u7684\u4ee3\u78bc\uff0c\u78ba\u4fdd React.createElement \u65b9\u6cd5\u7684\u7b2c\u4e00\u500b\u53c3\u6578\u662f\u4e00\u500b\u5b57\u7b26\u4e32\u6216 ReactClass\u3002\u4f8b\u5982\uff0c\u5982\u679c\u958b\u767c\u8005\u6b63\u5728\u4f7f\u7528 ReactClass\uff0c\u4ed6\u5011\u53ef\u4ee5\u5c07\u5176\u4f5c\u70ba\u7b2c\u4e00\u500b\u53c3\u6578\u50b3\u905e\u7d66 React.createElement \u65b9\u6cd5\uff1a<\/p>\n<pre class=\"brush: javascript\">\nReact.createElement(MyReactClass, {...props}, ...children);\n<\/pre>\n<p>\u53e6\u4e00\u65b9\u9762\uff0c\u5982\u679c\u958b\u767c\u8005\u6b63\u5728\u4f7f\u7528 DOM \u5143\u7d20\uff0c\u4ed6\u5011\u53ef\u4ee5\u5c07\u5176\u4f5c\u70ba\u7b2c\u4e00\u500b\u53c3\u6578\u50b3\u905e\u7d66 React.createElement \u65b9\u6cd5\uff1a<\/p>\n<pre class=\"brush: javascript\">\nReact.createElement('div', {...props}, ...children);\n<\/pre>\n<p>\u6b64\u5916\uff0c\u958b\u767c\u8005\u9084\u53ef\u4ee5\u4f7f\u7528 React.Fragment \u4f86\u66ff\u4ee3 null\u3001undefined\u3001boolean \u6216 number\uff1a<\/p>\n<pre class=\"brush: javascript\">\nReact.createElement(React.Fragment, {...props}, ...children);\n<\/pre>\n<p>\u7e3d\u4e4b\uff0c\u5982\u679c\u958b\u767c\u8005\u9047\u5230 &#8220;Error: React.createElement: type should not be null, undefined, boolean, or number. It should be a string (for DOM elements) or a ReactClass (for composite components)&#8221; \u932f\u8aa4\uff0c\u4ed6\u5011\u53ef\u4ee5\u6aa2\u67e5\u4ed6\u5011\u7684\u4ee3\u78bc\uff0c\u78ba\u4fdd React.createElement \u65b9\u6cd5\u7684\u7b2c\u4e00\u500b\u53c3\u6578\u662f\u4e00\u500b\u5b57\u7b26\u4e32\u6216 ReactClass\uff0c\u6216\u8005\u4f7f\u7528 React.Fragment \u4f86\u66ff\u4ee3 null\u3001undefined\u3001boolean \u6216 number\u3002<\/p>\n<p><!--more--><\/p>\n<p>\u6700\u5f8c\uff0c\u958b\u767c\u8005\u9084\u53ef\u4ee5\u4f7f\u7528 React DevTools \u4f86\u6aa2\u67e5\u4ed6\u5011\u7684\u4ee3\u78bc\uff0c\u4ee5\u78ba\u4fdd\u4ed6\u5011\u6b63\u78ba\u5730\u4f7f\u7528 React.createElement \u65b9\u6cd5\u3002React DevTools \u662f\u4e00\u500b Chrome \u64f4\u5c55\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u8f15\u9b06\u5730\u6aa2\u67e5\u4ed6\u5011\u7684 React \u7a0b\u5e8f\uff0c\u4e26\u66f4\u8a73\u7d30\u5730\u4e86\u89e3\u5176\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n<h2>\u7e3d\u7d50<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u8a0e\u8ad6\u4e86 React.js &#8220;Error: React.createElement: type should not be null, undefined, boolean, or number. It should be a string (for DOM elements) or a ReactClass (for composite components)&#8221; \u5e38\u898b\u932f\u8aa4\u7684\u539f\u56e0\uff0c\u4ee5\u53ca\u5982\u4f55\u89e3\u6c7a\u5b83\u3002\u6211\u5011\u767c\u73fe\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6aa2\u67e5\u4ed6\u5011\u7684\u4ee3\u78bc\uff0c\u78ba\u4fdd React.createElement \u65b9\u6cd5\u7684\u7b2c\u4e00\u500b\u53c3\u6578\u662f\u4e00\u500b\u5b57\u7b26\u4e32\u6216 ReactClass\uff0c\u6216\u8005\u4f7f\u7528 React.Fragment \u4f86\u66ff\u4ee3 null\u3001undefined\u3001boolean \u6216 number\u3002\u6b64\u5916\uff0c\u958b\u767c\u8005\u9084\u53ef\u4ee5\u4f7f\u7528 React DevTools \u4f86\u6aa2\u67e5\u4ed6\u5011\u7684\u4ee3\u78bc\uff0c\u4ee5\u78ba\u4fdd\u4ed6\u5011\u6b63\u78ba\u5730\u4f7f\u7528 React.createElement \u65b9\u6cd5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u89e3\u6c7aReact.js\u4e2d\u7684&#8221;Error:React.createElement:typeshouldnotbenull,undefined,boolean,ornumber&#8221;\u932f\u8aa4\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u6709\u7528\u7684\u6280\u5de7\u548c\u5efa\u8b70\uff0c\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u89e3\u6c7a\u6b64\u932f\u8aa4\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[184,183],"tags":[182,181],"class_list":["post-4718","post","type-post","status-publish","format-standard","hentry","category-react","category-react-js","tag-react","tag-react-js"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1e6","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4718","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=4718"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4718\/revisions"}],"predecessor-version":[{"id":4719,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4718\/revisions\/4719"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=4718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=4718"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=4718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}